Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
ARCTIC STRATOSPHERE DYNAMICAL PROCESSES IN THE WINTER 2021-2022
Form of presentationArticles in international journals and collections
Year of publication2022
Языканглийский
  • Guryanov Vladimir Vladimirovich, author
  • Bibliographic description in the original language Vargin P.N, Koval A.V, Guryanov V.V., Arctic Stratosphere Dynamical Processes in the Winter 2021-2022 // Atmosphere. - 2022. - Vol.13, Is.10. - Art. №1550.
    Annotation The Arctic stratosphere winter season of 2021–2022 was characterized by a stable, cold stratospheric polar vortex with a volume of polar stratospheric clouds (PSC) close to the maximum values since 1980, before the beginning of minor sudden stratospheric warming (SSW) events in the late February and early March and major SSW on 20 March. Analysis of dynamical processes of the Arctic stratosphere using reanalysis data indicates that the main reasons for the strengthening of the stratospheric polar vortex in January–February are the minimum propagation of planetary wave activity from the troposphere to the stratosphere over the past 40 years and its reflection in the upper stratosphere–lower mesosphere in the second half of January. The first minor SSW was limited to the upper polar stratosphere, whereas the second one propagated to the middle and lower stratosphere and led to the disappearance of the PSC, which prevented significant ozone depletion. Both minor and major SSW events led to a weakening of the residual meridional circulation in the upper Arctic stratosphere and its intensification in the middle and lower stratosphere, which contributed to additional warming of the subpolar region and weakening of the polar vortex.
    Keywords Arctic stratosphere; planetary waves; ozone layer; stratospheric warming; final stratospheric warming; residual meridional circulation
    The name of the journal Atmosphere
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140452763&doi=10.3390%2fatmos13101550&partnerID=40&md5=3bc0e69682f89f6bd562a4c22649f312
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=272168&p_lang=2

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